This app should not exist. I downloaded this app and "selective color effect" at the same time. Tried this one first, and was frustrated because I couldnt change the brush size among other things. Then went to selective color effect by twinbit, ltd. You can change the brush size, it shows a smaller image so you know exactly where the brush is despite being hidden by your giant finger, and you can make things "grey" "color" or change the original color. It has the ultimate flexibility and precision all for free! You have to rate them to unlock the color change, though.
etinker33 about Photo Splash photo editor app